About the Author(s)

R.K. Srivastav is an academician par excellence having 27 years of experience in school education. He is MSc double (Zoology and Environment Science) and has done special course in Curriculum Development & Book Writing.
He is a prolific writer on Biology and Science subjects and has written over 150 textbooks, Laboratory manuals, Question banks and Activity Series for students of classes 1–12 for CBSE, J&K, Tamil Nadu and International Boards.
His writing style is simple, upto the mark and to the students' level. The writer keenly emphasizes on 'MIND MAPS' and diagrams in his books so that each student can understand them easily.
At present he is the Principal of a public school in Faridabad (Haryana).